baber/WOPTO huggingface dataset:
Patent GB-857196-A (GB)
Title: Improvements in and relating to gas meters
Inventor: GASKIN RICHARD DONALD
IPC: F16K35/00
Filed: 1957-07-17
Abstract: 857,196. Stuffing-boxes. UNITED GAS INDUSTRIES Ltd. June 17, 1958 [July 17, 1957], No. 19287/57. Class 122 (5). [Also in Group XXIX] A stuffing-box 2 for the spindle 3 of the prepayment valve of a gas meter has leather rings 4, 5 and packing rings 6 secured in place by a screwed collar 7.
Patent GB-652250-A (GB)
Title: Improvements in or relating to fluxes for use in the treatment of light metals
IPC: C22B9/10
Filed: 1946-08-29
Abstract: Magnesium base alloys containing zirconium are melted in crucibles and the alloys are protected against oxidation by a flux consisting of at least two chlorides of the group consisting of the chlorides of alkali and alkaline earth metals including magnesium, the flux containing not less than 25 per cent of barium chloride or 35 per cent of strontium chloride or a mixture of barium and strontium chlorides equivalent to not less than 25 per cent barium chloride reckoning 1 per cent strontium chloride equivalent to 0.7 per cent barium chloride.  The flux does not contain more than 5 per cent if any of inspissating agents including inert metallic oxides and has a specific gravity of at least 2.05 at 800 DEG C., the liquidus temperature of the flux as a whole being not greater than 610 DEG C. The flux may contain at least 20 per cent of magnesium chloride and up to 5 per cent of one or more of the fluorides of potassium, sodium, barium, strontium, calcium and magnesium or it may be free from magnesium chloride and contain up to 5 per cent of magnesium fluoride. Specifications 511,137, 539,023, 539,024, 652,224, 652,226, 652,227 and 652,234 are referred to.  The Provisional Specification describes also the treatment of magnesium, magnesium base alloys and aluminium base alloys containing magnesium.
Patent GB-1468952-A (GB)
Title: Audio or acoustic apparatus comprising a radio portion and a tape recorder portion
IPC: G11B31/00
Filed: 1974-05-21
Abstract: 1468952 Latches OLYMPUS KOGAKU KOGYO KK 21 May 1974 [24 May 1973 21 Sept 1973 18 May 1974] 22751/74 Heading E2A [Also in Division H3] In an audio apparatus comprising a radio 1, Fig. 2 and a tape recorder 50 including accommodation for an electrical source to power the tape recorder when it is separated from the radio a mechanical coupling 18a-d and 63a-d is provided for detachably mechanically coupling the radio and tape recorder and electrical coupling 17, 62 is also provided to enable the radio and tape recorder to cooperate electrically when they are mechanically coupled. By pressing the tape recorder 50 into the end of the radio 1 the holes 63a-d in the back of the recorder housing 59 cause the pairs of domed coupling pins 18a, 18c and 18b, 18d to move towards each other and then snap behind the holes 63 so as to lock the tape recorder and radio housings together. By pressing buttons 20a, 20b Figs. 7 and 8 the pins 18 are released from the holes 63 and a spring biased plunger 19 separates the tape recorder and radio housings.
Patent GB-387609-A (GB)
Title: Improvements in or relating to air pumps for blow-lamps and other pressure oil lampsor stoves
IPC: F23D99/00
Filed: 1932-08-15
Abstract: 387,609. Air-pumps for blow-lamps. SHAW & SONS, WOLVERHAMPTON, Ltd., J., and HANKINS, W. E., Fryer Street, Wolverhampton. Aug. 15, 1932, No. 22784. [Class 8 (i).] In air-pumps for blow-lamps and other lamps and stoves operated to force oil through a vaporizing burner, the pump plunger is designed to seal the passage from the pump to the oil container when the container has been put under pressure. For this purpose the coned inner end m of the pump plunger n is designed to seat on the end of the passage k in the end disc g and to be locked in this position by the screw r on the outer end of the plunger working into the barrel end cap f. During operation of the pump, the locking-means on the plunger are held back from their seatings by a sliding stop u which is held by the fingers so that its terminal disc s aligns with the head of the operating-knob q on the pump plunger. When in this position, the terminal collar of the stop extends below the screw r and prevents its contact with the screw thread in the cap f.
Patent GB-228163-A (GB)
Abstract: 228,163. Guillemin, J. J. J. Jan. 21, 1924, [Convention date]. Linings, coatings, and coverings.-An apparatus for applying to the internal walls of preserve boxes a coating of aluminium &c., coated paper, or metal foil, comprises an expanding envelope 3, Figs. 1 and 2, which is expanded so as to force the lining against the inner surface of the vessel either by an inflatable rubber cylinder 7, Fig. 1, which is expanded by means of a hand-pump comprising barrel 5, piston 13, and handle 15, or by a segmental metal cyllinder of which the segments are hinged together at 23 - - 26, the meeting edges of the first and last segments being forced apart by a cam 27 operated from a handle 15.
Patent GB-228866-A (GB)
Abstract: 228,866. Fabbrica Italiana Magneti Marelli. Feb. 7, 1924, [Convention date]. Mechanical interrupters for the ignition circuits of high-speed internal combustion engines have a stiff metal plate G of small inertia carrying one of the contacts C' which is pressed against the fixed contact C<2> by a helical spring M guided in a recess in the block B carried by the interrupter plate A. The end of the plate G is bent over and rests in the bent-over end of a plate L secured to the block B. The other end S of the plate G is held in a slot in an insulating block T pivoted at O. As the interrupter plate A rotates the projection P of the block T is engaged by fixed cams Z so that the block T is oscillated about its pivot O carrying with it the free end of the plate G and breaking the ignition circuit. Current is led to the plates G through a flexible conducting strip N.
Patent GB-1096317-A (GB)
Title: Improvements in or relating to spinnerets
Inventor: ATTFIELD DONALD JAMES
IPC: D01D5/253
Filed: 1964-06-03
Abstract: 1,096,317. Spinnerets. IMPERIAL CHEMI. CAL INDUSTRIES Ltd. May 26, 1965 [June 3,1964], No. 22930/64. Heading B5B. A spinneret comprises a spinneret plate 1 with a counter-bore 2 in the bottom of which is located an extrusion orifice 3 consisting of a body portion and at least two extended tip portions, and an insert 8 extending for a predetermined distance into the counterbore. The spinneret is used for the manufacture of synthetic filaments of non-circular cross-section, the relative volumes of polymer supplied to the orifice tip and body portions being controlled by the dimensions of the insert and/or the depth to which it extends into the counterbore. The insert 8 may be located by lugs 9, and the tip 12 may be level with or above the base of the counterbore. The tip portion of the insert may be of a variety of shapes. The orifice may be in the shape of e.g. a Y, a T, a crescent, or a triangle. It is possible to supply the polymer to the tip portions only of the orifice. The flow characteristics may be altered merely by changing inserts. Any melt-spinnable synthetic polymer may be employed, e.g. polyamides, copolyamides, polyesters, copolyesters, polyesteramides, polyolefins, polyurethanes, and polycarbonates.
Patent GB-1424409-A (GB)
Title: Gear drive with twin clutch output
IPC: B02C17/24
Filed: 1973-05-15
Abstract: 1424409 Tube mills DOMINION ENG WORKS LTD 15 May 1973 23085/73 Heading B2A [Also in Division F2] To facilitate starting a grinding mill which is driven from an electric motor 18 through a reduction gearbox 23 having two output shafts 25 which are connected by clutches 24 to pinions 12, 14 meshing a gear 16 fast with the mill, the motor 18 and reduction gearing is run up to speed prior to engagement of the clutches 24 so that the momentum of the gearing assists in starting the mill. The clutches may be pneumatically or hydraulically operated.
Patent GB-997063-A (GB)
Title: Exceptionally-clean steel
IPC: C22B9/20
Filed: 1963-06-11
Abstract: Clean steel free from inclusions, for ball-bearings or jet and missile parts, is prepared by air melting a charge of iron without adding the strong deoxidizers Al and Ti and the weaker deoxidizers Mn and Si, adjusting the carbon content of the molten melt, particularly for carbon deoxidation, such as by adding carbon, e.g. in the form of high carbon ferrochrome, as pig iron or such carbonaceous material as coke, in an amount 1-1.5 times the stoichiometric amount required to convert the oxygen in the melt into CO, then casting the melt into an ingot and melting the ingot as the consumable electrode in a vacuum electric arc furnace with the electrode region under a maximum pressure of 100 microns of mercury. The initial open steel melt may be degassed under a maximum pressure of 1000 microns of mercury.  The starting charge may be of scrap iron melted in an electric arc furnace under a carbide slag covering, e.g. containing lime, fluorspar and coke fines, and a jet of oxygen may be blown into this melt from a lance, or oxygen may be introduced by adding iron oxide. Alloying elements such as Co, Ni, V and Mo may be charged into the initial melt. Alternatively, the air melting may be effected in an induction, open-hearth or L-D furnace. If necessary, a second vacuum melting step may be performed at a lower pressure than that of the first, or the melt may be subjected to vacuum lift degassing or bubbling through with argon.  Specification 915,851, and U.S.A. Specifications 2,727,936, 2,818,461 and 3,033,550 are referred to.
Patent GB-270235-A (GB)
IPC: B60C23/00
Filed: 1926-09-20
Abstract: 270,235. Schmidt, R. May 1, 1926, [Convention date]. Tyres, inflationof. - A compressed-air reservoir 1, Fig. 2, is connected to a distributor 2 connected to the various tyres by pipes 3 and to a pressure gauge 29 which may be put into communication with any tyre to ascertain the air-pressure therein. Two valves 21, 22 on a stem 20a and an apertured rotatable cylinder 24 control the passage between the container 4 and the tubes 3. In operation, the push-knob 20 is slightly depressed, the valves 21, 22 are opened, and air is admitted to the pipe 3 to open the tyre valve. The tyre pressure is then registered by the gauge. If this is not sufficient the knob is pushed in further and the tyre inflated. In its further travel the valve 21 meets a ball 37 which it raises thus allowing the air access to a safety blow-off valve 31. The pipes 3 are connected to the wheel hubs as shown in Fig. 4. A union piece 4 is secured to ahub cap 8 by means of a, hollow bolt 13 having a conical head. Normally the bolt head and the part 4 are kept apart preferably by spring pressure but when air is admitted to the pipe 3 the part 4 is forced outwards as shown to malie an air-tight joint with the head. Roller bearings 38 are provided for the unions 4. Connection to the tyres is effected by pipes 19.
Patent GB-644426-A (GB)
Title: Improvements in or relating to sound recording and reproducing systems
IPC: G11B11/08
Filed: 1947-08-21
Abstract: 644,426. Electric sound recording. BOSWELL, I. I., PLANER, G. V., and PLANER, F. E. Aug. 21, 1947, No. 23237. [Class 40 (ii)] In a sound recording or reproducing apparatus, the permittivity of successive areas of a dielectric carrier body are permanently changed by external influences in accordance with the sound to be recorded. As shown, in the recorder, Fig. 1, the electric field between electrodes 24, 15 which corresponds with the sound received by microphone 20, causes variations in the permittivity of the dielectric strip record body 10, which is moved between 14, 15 by the driven rollers 11, 12. In the reproducer, Fig. 2, the record 10 is moved between the electrodes 14, 25, in series with the source of constant voltage 26 and resistor 27. The voltage developed at the latter energizes the louclspeaker 29. In further embodiments, not shown, the devices shown in Figs. 1, 2 may be used together as a record copier and in a further embodiment, not shown, the change in permittivity along the strip is used to vary the frequency of the oscillator, the output of which is applied to a frequency discriminator. The record body may be in the form of a strip or disc of thermoplastic resinous material which supports particles of a ceramic dielectric, or alternatively the metal strip or disc may carry a varnish coating which incorporates the dielectric particles. Specification 644,432 is referred to.
Patent GB-969467-A (GB)
Title: Process for the production of rubbery polymers of butadiene
IPC: C08F136/06
Filed: 1963-06-11
Abstract: Polybutadiene in which at least 75% of the units are in the cis-1, 4 configuration is produced by contacting butadiene with an iodine-containing catalyst formed by mixing a Grignard reagent RMgX with a titanium compound TiX13y where R is a hydrocarbon radical, X and X1 are chlorine, bromine or iodine atoms, y is R1, OR1, OOCR1 or an acetyl-acetonate radical, where R1 is a hydrocarbon radical containing from 1 to 18 carbon atoms, the ratio of RMgX to TiX13y being in the range 2:1 to 10:1 on a molar, and either one of the X1 atoms or the X atom is iodine, or iodine or an iodine-releasing compound is present.  Lists of Grignard reagents, titanium compounds and iodine-releasing compounds are given; the last named compounds include iodine monochloride and monobromide, iodine trichloride and hydrogen iodide.  The polymerization may be carried out in a non-reactive diluent, preferably an aromatic hydrocarbon.  In the examples the catalysts used are ethylmagnesium iodide with titaniumtrichloromonobutoxide or titanium trichloromonooctoate.
Patent GB-229963-A (GB)
Title: Improvements in hat shaping apparatus
IPC: A42C3/00
Filed: 1924-10-03
Abstract: 229,963. Villers, L. Aug. 12, 1924, [Convention date]. Blocking. - In a hat-blocking machine the male and female moulds between which the hat is placed are each detachably mounted on a ring secured in the machine, the mounting being such as to permit adjustment of the inclination of the moulds. As shown, the male mould 3 is provided with yokes 8 pivotally mounted on the mould and adapted to be secured by pins 9 to the flat ends of screws 6 mounted in a ring 1 and adjustable by thumb nuts 7. A similar ring carries the female mould, and the rings are secured, respectively, to the fixed and moving parts of the machine. A pair of moulds 3 is provided for each shape and size of hat to be blocked.
Patent GB-1324454-A (GB)
Title: Copying method and apparatus
IPC: G03G15/30
Filed: 1971-04-19
Abstract: 1324454 Photo-copying KALLE AG 19 April 1971 [10 March 1970] 23384/71 Heading G2A In an electrostatic copier and method of use thereof, there is provided a reflex exposure device including a bar-like fibre optical element 4 past one end of which an original 2 and an optically clear spacing film 3 are transported, while copying material 13 is transported in the same direction past the other end of the element 4, there being means for transferring the laterally inverted electrostatic image formed in the photo-conductor layer 13 onto imagereceiving material 22. The transferred image is then developed. A clear spacing film 15 may be employed at the copying material end of the element 4. A single film may be provided to act as spacer at both ends. The apparatus may be modified to copy books.
Patent GB-1499707-A (GB)
Title: Heterocyclic aminoalcohols
IPC: C07D207/09
Filed: 1976-06-08
Abstract: 1499707 Aminoalcohols SOC D'ETUDES SCIENTIFIQUES ET INDUSTRIELLES DE L'ILE-DE-FRANCE 8 June 1976 [9 June 1975] 23694/76 Heading C2C Compounds of the general formula (R 1  = C 1-5  hydroxyalkyl; R 2  = H, C 1-3  alkyl; m = 1-3) and their acid addition and quaternary ammonium salts and N-oxides are prepared by reacting the corresponding 2-one (in which the hydroxy group may be acylated) with a dialkyl sulphate, alkali metal alkoxide and primary C 1-4  nitroalkane and reducing the resulting N - hydroxyalkyl - 2 - nitromethylene derivative, optionally followed by salt formation and/or resolution.
Patent GB-639179-A (GB)
Title: Manufacture of electric circuits and circuit components
IPC: H05K3/07
Filed: 1943-04-03
Abstract: 639,179. Electric heating resistances. STRONG, H. V., EISLER, P. April 3, 1943, Nos. 23844/48, (divided out of 639,178) and 13235/43. [Class 39 (iii)] [Also in Group XXXVI] Electric heating resistances are produced by forming an imprint in a metallic powder on an insulating base, the imprint being consolidated and rendered conductive by joining its discrete particles with metal in liquid or nearly liquid state. The imprint may be formed on the insulating base by printing a positive design in a metallic ink ; by printing a positive design in an adhesive ink on a non-adhesive base, applying metal powder to the whole surface and then removing the powder from the parts to which it does not adhere, or by printing a negative design in non-adhesive ink on an adhesive base, applying metal powder to the whole surface and then removing the powder from the parts to which it does not adhere. The consolidation may be carried out by spraying on a finely divided molten metal, by subjecting the print to a galvanizing process or by heating the print in the vapour of a metal compound which readily dissociates. Alternatively the metal powder may be intimately mixed with solder and then heated in the presence of a flux, or a second layer of powder having a different melting point may be applied to the first layer and consolidation may be effected by heating.
Patent GB-1154516-A (GB)
Title: Information shift apparatus in a computer system.
IPC: G06F11/16
Filed: 1967-05-23
Abstract: 1,154,516. Shifting in a computer. GENERAL ELECTRIC CO. 23 May, 1967 [25 May, 1966], No. 23872/67. Heading G4A. In a computer system data from a selected one of a plurality of storage locations in a data storage unit is transferred to a register, and from there via shift means back to the selected storage location without passing through another register in the process. Peripheral sub-systems (input/output and storage) communicate via an input/output controller with main memories each associated with a respective processor. The input/output controller is controlled from one of the main memories selected manually and includes a micro-programme store, a processor and a buffer store. The buffer store includes two oneword buffers for each of six peripheral subsystems. During transfer of data from one of these sub-systems, a word is read from one of the buffers into a register and from there passed through shift logic which displaces (shifts) characters and associated parity (one per character) and count (one per character) bits to make room for a character received from the peripheral sub-system together with its parity and count bits which are gated in by the shift logic. The output of the shift logic is stored back in the buffer. Each count bit is ONE and when the first of these count bits reaches a given position during the shifting, the buffer is full. During transfer of data to one of the six subsystems, a word to be transferred is placed in the register referred to, one character being sent to the sub-system and the others being transferred, with a one-character shift, into one of the buffers. The buffer contents can then be read out into the register, one character sent to the sub-system and the rest returned to the buffer with a one-character shift, and so on. Transfer of the word is complete when a count bit, inserted in the buffer initially, reaches a particular position. Two buffers are also provided for each of the other peripheral subsystems, each holding one data character, a parity bit and a " count " bit.
Patent GB-503221-A (GB)
Title: Improvements in or relating to electron discharge tubes
IPC: H01J19/42
Filed: 1937-09-01
Abstract: 503,221. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Sept. 1, 1937, No. 23892. Convention date, Sept. 1, 1936. [Class 39 (i)] In a valve having the envelope wholly or mainly of metal, the electrode system is mounted on a base-plate 1 with the axis of the system parallel to the base-plate. This plate may be of metal or of ceramic material with a metal coating to facilitate welding to the cover 22 ; the metal cover and base-plate may have corresponding projections and recesses to facilitate sealing. Metal side plates 5, 51 welded to the base support-by means of insulating plates 6, 6<1>-the equipotential cathode 7 and the grid and anode posts 11, 13, 15, 171, the side plates acting as screens for the system. Lugs 19 on the plate 51 act as screens to the cathode heater leads 9, 10, which with the leads to the anode and suppressor grid are taken to one side of the system, while the cathode lead and leads to the other grids are taken to the opposite side. All these leads pass through glass stoppers held in short metal tubes 2 welded to the base-plate. The metal gauze anode 17 extends over the whole length of the grids only above and below the electrodes, being cut away at the sides. A metal exhausting tube 21 is protected by a tube 25 supported by a bracket 25a from the base-plate or from an insulating bottom plate 23; this tube 25 with a pin 24 is used in centring the valve on a chassis 32, Fig. 6, of a radio set. A plate 33 acts as a holder for the valve, held in place by a cross-plate 35 which may fix several valves on the chassis. The coils of the set are placed within the chassis 32' which protects the coils from the heat of the valves ; or the components associated with the grids may be inside or below the chassis and those associated with the anode circuit above or outside the chassis or vice versa.
Patent GB-320185-A (GB)
Title: Improvements in the recovery of precious metals by amalgamation
IPC: C22B11/10
Filed: 1928-08-20
Abstract: 320,185. Enzlin, D., and Eklund, J. A. Aug. 20, 1928. Amalgamating.-In a process for recovering precious metals by amalgamation, the metalliferous material is brought into contact with zinc- or tin-amalgam in the presence of an activator comprising hydrochloric acid, one or more mercuric chlorine compounds, and zinc chloride, with or without free chlorine and to which may be added sodium chloride. A solution of hydrochloric acid containing some free chlorine or of zinc or mercuric chlorides is prepared and the ore is crushed therein. A small quantity of hydrochloric acid is added to the pulp thus formed which is then passed over an iron or nickel surface coated with zinc amalgam which retains the precious metal. The solid matter is then separated from the solution, which is clarified and passed through an electrolytic cell, the zinc and mercury being recovered therefrom and the solution used over again.
Patent GB-599351-A (GB)
Title: A new sail for water-craft
IPC: B63H9/06
Filed: 1945-09-17
Abstract: 599,351. Sails. BOUSFIELD, E. G. P. Sept. 17, 1945, No. 23898. [Class 115] A sail is provided with two tack lines Band C and two sheets A and D, one of each at either end of the foot of the sail so that either end may become alternatively the clew and the tack. The sail may be swung round the front of the mast, both tack lines being completely adjustable. A boom or a gaff may also be provided and adapted to slide freely vertically up the mast whilst at the same time moving across it horizontally.